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Finding the Fourth Proportional to 273.94, 378.57 and 224.72

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Solution

The fourth proportional to 273.94, 378.57 and 224.72 is: 310.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.94 : 378.57 = 224.72 : x
  2. Step 2: Convert to fraction form
    273.94/378.57 = 224.72/x
  3. Step 3: Cross multiply
    273.94x = 378.57 × 224.72
  4. Step 4: Simplify right side
    273.94x = 85,072.25
  5. Step 5: Solve for x
    x = 85,072.25/273.94
  6. Step 6: Final answer
    x = 310.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.